Matthew

Event-O-Matic has been rewritten for WordPress 4. View details below.
The Event-O-Matic is an amazing plugin that allows rapid publishing of event listings to your website. Event-O-Matic allows your users to submit their own events and gives you the ability to moderate these events as they arrive to your site. Edit or reject submitted events and add them to your listings for the ultimate social driven event service. Event-O-Matic is also fully integrated with Google Maps to give each event clear location information within your city. View more information <a href="http://garvinmedia.com/eom" rel="nofollow ugc">here</a>.
Other features:
<ul>
<li>Easy media upload for events.</li>
<li>Sidebar widget with upcoming events listings.</li>
<li>Admin Dashboard for quick status previews.</li>
<li>Updated Google Maps Geolocation service.</li>
<li>Exportable to iCal formats</li>
</ul>

Event-O-Matic

Manage submissions to build a community-driven event listing. Allow users to submit events that you can easily review and moderate.

prakash.m

Power your site with this WordPress-integrated map making & location management system possessing mapping tools to create store locators, store finders, and other location address maps. Manage and display a few or thousands of your important stores, points of interest, or product locations anywhere on Earth using Google Maps. 
Its strength is best seen in its flexibility to allow you to easily manage any number of locations from your WordPress admin interface and the several addons featuring top-level features that are available to further boost its capabilities. Also referred to as an address map, address location map, locator map, store finder, dealer locator (locater), shop finder. 
mapwidget allow you to search any location from front end. want professional version check <a href="http://magento.ifyouknowit.com" rel="nofollow ugc">Go pro</a>
Example usage: 1. Go to admin mapworks settings and put google map api key of yours 2. in your page/post text/editer put this line: 
 [mapworks stext=”[php] if(isset($_POST[‘smap’])){ echo $_POST[‘smap’];} [/php]”]
<pre><code> in your php page you may put <?php 
 if(function_exists('mapworks') ){ mapworks($_POST['smap']); } ?> 
 <?php 
 if(function_exists('mapworks') ){ 
 print do_shortcode('[mapworks stext="'.$_POST['smap'].'"]'); } ?> 
 best option is in your page/post text editer in admin panel put this line. 
 [mapworks stext="[php] if(isset($_POST['smap'])){ echo $_POST['smap'];} [/php]"] </code></pre>

Mapworks

A WordPress-integrated map & location management interface. Quickly create street locator maps

Event-O-Matic vs Mapworks